Collapsible drum.



W. A. BARRY.

COLLAPSIBLE DRUM.

APPLICATION men mu: 7. 1915.

Patented Apr. 17, 1917. ,1

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Patented Apr. 17, 1917.

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WILLIAM A. BARRY, OF KITTANNING, PENNSYLVANIA.

COLLAPSIBLE DRUM.

Specification of Letters Patent.

Patented Apr. 17, 1917.

Application filed June 7, 1915. Serial No. 32,723.

To all whom it may concern.

it known tl at l, lViLLIAM A. BARRY. a citizen oi the United States,residing at Kilianning, in the county of Armstrong and t'rltate ofPennsylvania, have invented new and useful improvements in CollapsibleDrums, of which the following is a specification.

Th is invention relates to drums.

The pr ncipal object of the invention is the pro'vi ion of a drum soconstructed that it may be knocked down and folded into compact form forcarrying from place to place conveniently.

Another ob ject of the invention is to pro ride a folding drum which maybe readily knocked down or folded into compact form or set up intooperative position wi hout in any way affecting the tone of the instru-Further objects of the invention will appear as the following specificdescription is read in connection witl the accompanying drawings whichform a part of this application, and in whicl Figure is a pc Jpecl'iVeview of the drum in operative position.

big. :2 is a similar View with the parts in folded position.

l ig. is a side elevation showing one of the hoops or bands in partiallyfolded posi tion.

Fig. l is a top plan view of one of the hoops in completely foldedposition.

Fig. 5 is a top lan view of the drum shell ""irtly fold; position.

g. 6 is a tail pcrspectire View showthe meeting ends of the drum shellin M ara-ted rel ation,

'l is a detail vertical sectional YlQW taken through the drum.

Fig. 8 is a view showing one of the hoops partly folded.

Fig. 9 is a similar view showing the arrangement prior to the completefolding of the hoop.

In the specific embodiment of the invention as illustrated herein, thedrum consists generally of a sh ll 1, hoops or hands 2, connecting rodsand heads at secured to the bands. The shell comprises plurality ofarcuate sections 3, 6, 7 and 8, hinged together as shown and arranged sothat when the free edges of the sections and 8 are brought together acircular tube will be pro duced. The section 5 is preferably providcdwith dowel pins 9 adapted to lit in the sockets 10 of the section 8.

As the upper and lower hoops arc identical it will be necessarytherefore, to describe only one. .hese hoops are formed of semi-circularsections 11 and 12 connected together by the hinge 13 which permits oneof the sections to fold over upon the other section. Each sectionconsists of separate parts a and Z connected together by a hinge 14!:which permits the free ends of the folded sections to be broughttogether thereby producing an elliptical package as is shown in Fig. 2.Each section 11 and 12 is provided with a channel or recess in its outersurface as shown at 15 to re ceive the peripheral edge of the drum head4 Which is stretched around the hoop and extends beneath the same andinto the recess where it is securely held by metallic strips 17 fastenedto the band or hoop by screws 18 or other similar fastening devices. Thestrip 17 for each section is divided into two parts so as to permit ofthe folding of the parts a and Z) of the sections of the band.

Each hoop section carries a plurality of laterally extending slottedlugs 19 provided with a circular recess 90 in. their outer facesarranged to receive the hub of the Wing nuts 21 threaded upon the endsof the tension rods lVhen the wing nuts are loosened at either end ofthe drum, the rods may be removed from the lugs 19 and the parts foldedas shown in Fig. 3. As shown in Fig. 7, the hoops or bands are ofslightly larger diameter than the shell so to fit over opposite endsthereof whereby when the hoops are drawn together by the nuts andtension rods the head resting upon the edges of the shell will be placedunder tension and thereby tuned. In folding the drum, the wing nuts arefirst loosened and the rods removed. The hoops or hands are thendisconnected from opposite ends of the shell and folded in a mannerbefore described. The shell is then folded and the bands placed uponopposite ends of the shell with the head lying within the foldedsections of the shell.

lVhat is claimed is 1. In a drum a foldable shell, head. carrying bandsfor opposite ends of the shell,

each of said bands comprising a pair of hingedly connected sections,each of said sections consisting of hinged parts pivoted on an axis atright angles to the axis of the sections, heads carried by the bands,slotted lugs carried by the bands and tension rods fitted into the slotsof the lugs and having Wing nuts threaded upon opposite ends thereof.

2. A collapsible drum comp ising a seg mental sectional shell saidsections being hinged together to provide a substantially oblong packagewhen folded, pins projecting from the edge of one of the end sectionsand adapted to be received in recesses in the meeting edges of theadjacent section when the shell is in set up position head carryingbands for the opposite ends of the shell, each of said bands comprisinga pair of hingedly connected sections, each of said sections consistingof hinged members pivoted on an axis at right angles to the axis of thesections, heads carried by said bands, slotted lugs projected from thebands, tension rods fitted in the slots of said lugs, and nuts threadedupon the opposite ends thereof.

In testimony whereof I affix my signature in presence of two Witnesses.

lVILLlAM A. BARRY.

lVitnesses S. A. SMITH, W. K. Moons.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

